diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 5eacd89a..e85191d2 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -6,25 +6,26 @@ on:
   pull_request:
   workflow_dispatch:
 
-jobs:
-  test:
-      runs-on: ubuntu-latest
-
-      strategy:
-        fail-fast: true
-        matrix:
-          python-version: ['3.8', '3.9', '3.10']
-
-      env:
-        PYTHON: ${{ matrix.python-version }}
-      steps:
-      - uses: actions/checkout@v3
-
-      - name: set up python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python-version }}
-      if: contains(github.event.pull_request.changed_files, 'rust/')
+if: github.repository == 'nrel/fastsim'
+  jobs:
+    test:
+        runs-on: ubuntu-latest
+
+        strategy:
+          fail-fast: true
+          matrix:
+            python-version: ['3.8', '3.9', '3.10']
+
+        env:
+          PYTHON: ${{ matrix.python-version }}
+        steps:
+        - uses: actions/checkout@v3
+
+        - name: set up python ${{ matrix.python-version }}
+          uses: actions/setup-python@v4
+          with:
+            python-version: ${{ matrix.python-version }}
+
         - name: install rust
           uses: actions-rs/toolchain@v1
           with:
@@ -36,7 +37,7 @@ jobs:
           run: |
             cd rust/ && cargo test
 
-      - name: Python unit tests 
-        run: |
-          pip install -e ".[dev]" && pytest -v python/fastsim/tests/ 
-          pytest -v python/fastsim/demos/
\ No newline at end of file
+        - name: Python unit tests 
+          run: |
+            pip install -e ".[dev]" && pytest -v python/fastsim/tests/ 
+            pytest -v python/fastsim/demos/
\ No newline at end of file